Colby Sells, 16, of Snellville watches the engine of his Camaro Iroc-Z as it revs loudly at the Sunday, July 1, Caffeine & Octane show at Perimeter Mall. Some residents of the nearby Manhattan high-rise condos, seen in the background at left, have complained to city officials about the loud noises coming from the popular car show. (Dyana Bagby)
